including Avantall gas engines & diesel enginesany transmission
excluding 2009 convertible8K Chassisany transmission
8W Chassisany transmission
Sprint Booster V3
You’ll love the way your Audi S4 performs with the new and improved Sprint Booster V3!After an easy, 10 minute. plug-n-play installation, you'll instantly know why Sprint Booster is the number one, performance add-on. Go from idle-to-full-throttle is a mili-second with no more throttle lag and increased pedal acceleration (whether you're at a dead stop or highway driving.) Make Driving Fun Again!